Aniline Br_2/OH^- X [HCl] NaNO_2 X' [ ] HBF_4 Z The final product, Z, is

JEE Main Chemistry question

The final product, , is

(A)1,3,5-tribromo-2-fluorobenzeneCorrect
(B)1-fluoro-2-nitrobenzene
(C)1-bromo-2-chloro-3-fluorobenzene
(D)1,3,5-tribromo-2,4-difluorobenzene

Answer: (A)

Solution

Aniline on treatment with (bromine water) undergoes exhaustive electrophilic bromination at the ring positions activated by the strongly electron-donating group (ortho and para to it), giving 2,4,6-tribromoaniline, . Diazotisation of with at the amino carbon gives

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Question ID VK-148015